Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

AMERICAN · FLIGHT AA 1535 LANDED 10:35 AM ET, ~8 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

AA 1535 · BOS → DCA

took off 9:20 AM ET · landed 10:35 AM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 13h after departure

Odds over time

Arrive at DCA more than 15 minutes late?
20% chance · ±0 pts +0 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 18h 12h 6h Departs Lands